Used as a key intermediate in the synthesis of conjugated organic semiconductors and fluorescent dyes. Its rigid, planar structure enhances π-conjugation, making it valuable in organic electronics such as OLEDs and OFETs. Commonly employed in Schiff base reactions to form imine-linked covalent organic frameworks (COFs) for sensing and catalysis. Also utilized in polymer chemistry to improve thermal stability and charge transport properties in thin-film devices.